Printing – Planographic – Processes of lithographic printing
Patent
1984-02-29
1985-07-09
Fisher, J. Reed
Printing
Planographic
Processes of lithographic printing
101148, 101350, B41F 736, B41F 3106, B41L 2512
Patent
active
045274797
ABSTRACT:
A method and apparatus for continuously using ink and dampening fluid in a printing system includes removing ink and dampening fluid from a form roller after the form roller engages the printing plate. Mixing of the removed ink and dampening fluid to form a substantially homogeneous printing liquid is accomplished by circulating the removed ink and dampening fluid to a reservoir where it is mixed with ink in the reservoir by an auxillary blender. The homogeneous mixture is further circulated to the center of a metering nip between two rollers and flows longitudinally of the rollers at a rate to prevent separation of the dampening fluid from the ink. Unused printing ink and dampening fluid is returned to the reservoir with the ink and dampening fluid removed from the form roller.
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Dahlgren Harold P.
Peters Dwight W.
Taylor James E.
Booth John F.
Crutsinger Gerald G.
Fisher J. Reed
Ross Monty L.
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